Comment 6 for bug 724867

I try this, but it dont work:
$ virtualbox
VirtualBox: supR3HardenedMainGetTrustedMain: dlopen("/usr/lib/virtualbox/VirtualBox.so",) failed: /usr/lib/virtualbox/VirtualBox.so: undefined symbol: _ZN10QGLContext9tryVisualERK9QGLFormati

$ sudo /etc/init.d/vboxdrv setup
[sudo] password for shakaran:
 * Stopping VirtualBox kernel modules [ OK ]
 * Uninstalling old VirtualBox DKMS kernel modules
Error! There are no instances of module: vboxhost
4.0.4 located in the DKMS tree.
                                                                         [ OK ]
 * Removing old VirtualBox netadp kernel module [ OK ]
 * Removing old VirtualBox kernel module [ OK ]
 * Trying to register the VirtualBox kernel modules using DKMS [ OK ]
 * Starting VirtualBox kernel modules [ OK ]

$ virtualbox
VirtualBox: supR3HardenedMainGetTrustedMain: dlopen("/usr/lib/virtualbox/VirtualBox.so",) failed: /usr/lib/virtualbox/VirtualBox.so: undefined symbol: _ZN10QGLContext9tryVisualERK9QGLFormati

Then I try to downgrade the package:
sudo aptitude install libqt4-core=4:4.7.0-0ubuntu4

But it dont work too, because the package it is on maverick (I don't know how to downgrade then)